Free Oracle 1Z0-815 Exam Dumps Questions & Answers

Which command line runs the main class com.acme.Main from the module com.example?

• A.java -classpath com.example.jar -m com.example/com.acme.Main
• B.java --module-path mods -m com.example/com.acme.Main
• C.java --module-path mods com.example/com.acme.Main
• D.java -classpath com.example.jar com.acme.Main

Given:

What is the result?

• A.is it 1
• B.this is it 3
• C.An IndexOutOfBoundsException is thrown at runtime.
• D.is it 0
• E.this is it 2

Given:

What is the result?

• A.10
• B.0
• C.0 4 9
• D.nothing

What makes Java dynamic?

• A.The runtime can process machine language sources as well as executables from different language compilers.
• B.The Java compiler preprocesses classes to run on specific target platforms.
• C.The Java compiler uses reflection to test if class methods are supported by resources of a target platform.
• D.At runtime, classes are loaded as needed, and new code modules can be loaded on demand.

Which statement is true about Java byte code?

• A.It can run on any platform only if it was compiled for that platform.
• B.It can run on any platform that has a Java compiler.
• C.It can run on any platform that has the Java Runtime Environment.
• D.It can run on any platform only if that platform has both the Java Runtime Environment and a Java compiler.
• E.It can run on any platform.